Member Avatar for ankitkshah

Hi all,

I have some code as following.

BOOL qw = ExtractResource(AfxGetResourceHandle(), IDR_DLL1, _T("C:\\VBDLL.dll") );

bool ExtractResource(const HINSTANCE hInstance, WORD resourceID, LPCTSTR szOutputFilename)
{
/*LPTSTR sArgv = argv[1];
LPTSTR sArgv2 = argv[2];*/

TCHAR sResName[5] = _T("#101");
TCHAR sRestype[4] = _T("DLL");

HRSRC hres = FindResource(AfxGetResourceHandle(), sResName,sRestype);

if (hres == 0)
{
MessageBox(NULL, L"ERROR FIND RESOURCES SUCCESS.", L"MYProject", MB_OK);
_tcprintf(_T("An Error Occurred.\n Could Not Locate Resource File."));
return 1;
}

HGLOBAL hbytes = LoadResource(NULL, hres);

LPVOID pdata = LockResource(hbytes);

DWORD dwSize = SizeofResource(hInstance, hres);

HANDLE hFile = CreateFile(szOutputFilename, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);


/// INSERT DATA IN FILE
HANDLE hFilemap = CreateFileMapping(hFile, NULL, PAGE_READWRITE, 0, dwSize, NULL);

LPVOID lpBaseAddress = MapViewOfFile(hFilemap, FILE_MAP_WRITE, 0, 0, 0);

MessageBox(NULL, L"1", L"MYProject", MB_OK);
try
{
MessageBox(NULL, L"2", L"MYProject", MB_OK);
RtlCopyMemory(lpBaseAddress,pdata,dwSize);
}
catch ( ... )
{
MessageBox(NULL, L"error in rtl.", L"MYProject", MB_OK);
}

UnmapViewOfFile(lpBaseAddress);

CloseHandle(hFilemap);

CloseHandle(hFile);

This code works fine in the CONSOLE Application. Dll copied to local drive. But when same code I am using in MFC application then It does not work. It crash from line

"RtlCopyMemory(lpBaseAddress,pdata,dwSize);"

Because of this line my application crashed. I make dll from this code. And I use this dll as customAction in setup. Please guid me. What should I do? Why RtlCopyMemory does not work in MFC and why It work in Console application? Please help me....

Thanks

Ankit
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Member Avatar for ankitkshah

Hi ,

I resolve it my self when I pass hInstace in Loadresources.

HGLOBAL hbytes = LoadResource(NULL, hres); so it works when I pass

HGLOBAL hbytes = LoadResource(hInstance, hres);

Thanks

Ankit

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